for wind turbines, tower flange connections, blade bearing bolts. Also for onshore and offshore foundations (MP (Monopile) - TP (Transition Piece)).
IHF supplies numerous, diversely designed fasteners for wind turbines. IHF has developed the IHF Stretch Bolt, IHF Stud Bolt and IHF Round Nut especially for the tension loaded bolted connections of wind turbine tower segments.
The advantages of designing with IHF Fasteners can also be applied to numerous applications in general steel construction. Due to the precise fabrication and accurate application of the erection prestressing force by the ITH Stretch Method, bolted connections can be designed more efficiently by using IHF Fasteners. Likewise, the reusability of IHF Fasteners is given.
The increased efficiency level allows the following advantages to be realized, depending on the design requirements: A smaller bolt dimension while maintaining the same flange thickness (which saves material costs) or alternatively the use of fewer bolts while maintaining the same preload force and the reduction of flange dimensions while maintaining the same bolt dimension.
IHF Fasteners can replace conventional HV fasteners. Common bolt dimensions are M20 to M100.